Southeastern Massachusetts in the context of "New Bedford, Massachusetts"

Plymouth Colony (sometimes spelled Plimouth) was the first permanent English colony in New England, founded in 1620, and the third permanent English colony in America, after Newfoundland and the Jamestown Colony. It was settled by the passengers on the Mayflower at a location that had previously been surveyed and named by Captain John Smith. The settlement served as the capital of the colony and developed as the town of Plymouth, Massachusetts. At its height, Plymouth Colony occupied most of what is now the southeastern portion of Massachusetts. Many of the people and events surrounding Plymouth Colony have become part of American folklore, including the American tradition of Thanksgiving and the monument of Plymouth Rock.

Plymouth Colony was founded by a group of Protestant Separatists initially known as the Brownist Emigration, who came to be known as the Pilgrims. The colony established a treaty with Wampanoag chief Massasoit which helped to ensure its success; in this, they were aided by Squanto, a member of the Patuxet tribe. Plymouth played a central role in King Philip's War (1675–1678), one of several Indian Wars. The colony was ultimately merged with the Massachusetts Bay Colony and other territories in 1691 to form the Province of Massachusetts Bay.

Greater Boston is the metropolitan region of New England encompassing the municipality of Boston, the capital of the U.S. state of Massachusetts and the most populous city in New England, and its surrounding areas, home to 4,941,632. The most stringent definition of the region, used by the Metropolitan Area Planning Council, consists of most of the eastern third of mainland Massachusetts, excluding the Merrimack Valley and most of Southeastern Massachusetts, though most definitions (including the U.S. Census definition) include much of these areas and portions of southern New Hampshire.

While the city of Boston covers 48.4 square miles (125 km) and has 675,647 residents as of the 2020 census, the urbanization has extended well into surrounding areas and the Combined Statistical Area (CSA in the rest of the document), which includes the Providence, Rhode Island, Manchester, New Hampshire, Cape Cod and Worcester areas, has a population of more than 8.4 million people, making it one of the most populous such regions in the U.S.